Why do you think test tube D produces a pale color as compared to the control, test tube A when KCI is added? Chemical Equilibrium HELP Ferric and thiocye Select the control tube Test tube A [FeCNS"] FeCly KCNS KCI K- (Fe"] [CNS] FelCNSI Reset Developed by Amrita University Under research grant trom Department orres man Techngy O K* ions in solution reacted with Fe3+ in the Fe(CNS)²+ complex hence decreasing the concentration of Fe(CNS)2+ complex ion in solution. O K* ions in solution reacted with CNS- in the Fe(CNS)2+ complex hence increasing the concentration of Fe(CNS)2+ complex ion in solution. O Cl ions in solution reacted with Fe3+ in the Fe(CNS)2+ complex hence increasing the concentration of Fe(CNS)2+ complex ion in solution. O C' ions in solution reacted with Fe3+ in the Fe(CNS)2+ complex hence decreasing the concentration of Fe(CNS)2+ complex ion in solution. O K* ions in solution reacted with CNS in the Fe(CNS)2+ complex hence decreasing the concentration of Fe(CNS)2* complex ion in solution.

Why do you think test tube D produces a pale color as compared to the control, test tube A when KCI is added? Chemical Equilibrium HELP Ferric and thiocye Select the control tube Test tube A [FeCNS"] FeCly KCNS KCI K- (Fe"] [CNS] FelCNSI Reset Developed by Amrita University Under research grant trom Department orres man Techngy O K* ions in solution reacted with Fe3+ in the Fe(CNS)²+ complex hence decreasing the concentration of Fe(CNS)2+ complex ion in solution. O K* ions in solution reacted with CNS- in the Fe(CNS)2+ complex hence increasing the concentration of Fe(CNS)2+ complex ion in solution. O Cl ions in solution reacted with Fe3+ in the Fe(CNS)2+ complex hence increasing the concentration of Fe(CNS)2+ complex ion in solution. O C' ions in solution reacted with Fe3+ in the Fe(CNS)2+ complex hence decreasing the concentration of Fe(CNS)2+ complex ion in solution. O K* ions in solution reacted with CNS in the Fe(CNS)2+ complex hence decreasing the concentration of Fe(CNS)2* complex ion in solution.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 14.18QAP

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Concept explainers

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.

Question

ONS Fe
Why do you think test tube D produces a pale color as compared to the control, test tube A when KCI is added?
Chemical Equilibrium
Select the test solution:
Ferric and thiocy
Select the control tube
Test tube A
FeONS
Fe(CNS)
[FelCNS")
K-
FeCl,
KCNS
KCI
(Fe"] [CNS]
(Fe(CNS)2
Reset
Developed by Amrita University Under research grant from
Department Or ectronics &Information Technology
O K* ions in solution reacted with Fe+ in the Fe(CNS)2+ complex hence decreasing the concentration of
Fe(CNS)2+ complex ion in solution.
O K* ions in solution reacted with CNS- in the Fe(CNS)2+ complex hence increasing the concentration of
Fe(CNS)2+ complex ion in solution.
O Cl ions in solution reacted with Fe3+ in the Fe(CNS)2+ complex hence increasing the concentration of
Fe(CNS)2+ complex ion in solution.
O Cl ions in solution reacted with Fe3+ in the Fe(CNS)2+ complex hence decreasing the concentration of
Fe(CNS)2+ complex ion in solution.
O Kt ions in solution reacted with CNS in the Fe(CNS)2+ complex hence decreasing the concentration
Fe(CNS)2+ complex ion in solution.

When 12 M HCI is added to the equilibrium system below, the color of the solution would be:
[Co(H2O)4]2*(aq) + 4Cl (aq)
[CoCl4[?{taq) + 6H201
O blue
O there is no change in color
O pink
O purple

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